--- title: 'Software Developer, DevEx (Stateful Systems) at Slice' canonical: 'https://feeny.ai/job/software-developer-devex-stateful-systems-slice-united-kingdom-north-macedonia-jpm5kg08wnhj' type: 'job' last_seen: '2026-11-01' --- # Software Developer, DevEx (Stateful Systems) at Slice - **Company:** Slice - **Location:** United Kingdom / North Macedonia - **Work type:** remote - **Posted:** 2026-10-23 - **Last confirmed live:** 2026-11-01 - **Apply:** https://slice.careers/careers-listing?gh_jid=8300434 ## Job description We believe independent restaurants deserve the same advantages as big chains without giving up their independence. Ilir Sela started Slice in his family’s pizzerias, where he saw firsthand what it takes to run a local shop. Now we’re taking everything we’ve learned beyond pizza, to taquerias, delis, burger joints, and other neighborhood staples. We put technology, marketing, buying power, and support to work for more than 15,000 restaurants, so owners spend less time on admin, marketing, and order management and more time growing their business. They remain independent, but never alone. We’re growing our team to help bring this next chapter to life. That’s where you come in. This position is open to applicants across all of the UK, and North Macedonia on a remote basis, with the physical offices located in Belfast - Northern Ireland and Debar, Ohrid, Skopje - North Macedonia. ## What You'll Do As a Software Engineer on the DevEx Stateful Systems team, you'll build the tooling and services that let every engineer at Slice work confidently with our databases, queues, caches, streaming pipelines and data lake. Our first priority is availability, from the systems that let customers order pizza and shops fulfil those orders, through to the reporting used across the business. You'll bring strong backend engineering to that problem, turning expert, manual work into self-service capabilities that product teams actually want to use. You will: - Build internal tooling, services and APIs that let engineers provision, change, migrate and troubleshoot their databases, topics and caches safely, without waiting on us. - Replace manual operational work with automation: upgrades, migrations, access requests, backups and restores. - Help operate and harden our production data stores and take part in the team's on-call rotation. - Partner with product engineering teams on schema design, migrations, query performance and ORM usage, bringing the perspective of someone who has done it from the application side. - Manage infrastructure as code with Terraform and improve CI/CD pipelines using GitHub Actions. - Improve observability across our stateful systems, instrumenting services and building alerts that teams can act on. - Use generative AI to help build and maintain internal services, including agentic services. - Champion best practices around reliability, safe change, security and platform adoption. Slice works on a "you build it, you run it" model, so our job is to give teams the tooling and expertise to run their systems well, not to run them on their behalf. Our Technology Our platform is constantly evolving, but some of the technologies you'll work with include: - PostgreSQL (AWS RDS) - Python - Terraform - AWS - GitHub & GitHub Actions - Datadog - Kafka (Amazon MSK) & Debezium - Apache Iceberg on S3, with Glue, Athena & EMR - Airflow (MWAA) & dbt - Generative AI (Claude Code & AI Agents) Most of our tooling is written in Python, but strong engineers from any general-purpose language, such as Go or Java, are just as welcome. More important than experience with every individual tool is solid engineering fundamentals and the curiosity to go deep on data infrastructure. ## Who You Are We're looking for backend engineers who have owned production systems end to end, including the database underneath them, and who now want to spend their time making other engineers more productive. The ideal candidate has: Strong backend engineering You write production-quality software in a general-purpose language such as Python, Go or Java. You've built services and APIs, you test what you ship, and you give and receive thoughtful code review. Relational databases from the application side You've run a relational database in production. You've designed schemas, shipped migrations on a busy database, chased a slow query from the ORM to the query plan, and added the right index to fix it. Distributed systems fundamentals You understand retries, idempotency, consistency trade-offs and how systems fail, and you design with those failure modes in mind. Cloud and infrastructure as code You have solid AWS experience, including IAM, RDS and networking basics, and you manage infrastructure with Terraform. ## CI/CD You've built and maintained delivery pipelines, ideally with GitHub Actions. Operational excellence You instrument what you build and write alerts worth acting on. You've been on call for production systems, and incident response and blameless postmortems are part of how you work. An internal tooling mindset You've built things for other engineers: CLIs, APIs, automation. You think in reusable systems rather than one-off fixes, and you know that a tool nobody adopts hasn't solved anything. The Hiring Process - Application. - 30-minute introductory conversation. - 60-minute conversation with department management. - 60-minute technical interview with future peers and team members. - Offer. We’re an Equal Opportunity Employer and embrace a diversity of backgrounds, cultures, and perspectives. We do not discriminate on the basis of race, colour, gender, sexual orientation, gender identity or expression, religion, disability, national origin, protected veteran status, age, or any other status protected by applicable national, federal, state, or local law. We are also proud members of the Diversity Mark NI initiative as a Bronze Member. Privacy Notice Statement of Acknowledgment When you apply for a job on this site, the personal data contained in your application will be collected by Slice. Slice is keeping your data safe and secure. Once we have received your personal data, we put in place reasonable and appropriate measures and controls to prevent any accidental or unlawful destruction, loss, alteration, or unauthorised access. If selected, we will process your personal data for hiring /employment processes, as well as our legal obligations. If you are not selected for the job position and you have given consent on the question below (by selecting "Give consent") we will store and process your personal data and submitted documents (CV) to consider eligibility for employment up to 365 days (one year). You have the right to withdraw your previously given consent for storing your personal data and CV in the Slice database considering eligibility for employment for a year. You have the right to withdraw your consent at any time. For additional information and / or exercise of your rights to the protection of personal data, you can contact our Data Protection Officer, e-mail: privacy@slice.com ## About Slice ## Company Overview - **One-liner**: Slice provides zero-cost credit card processing, POS systems, merchant cash advances, and digital tools to help small and medium businesses accept payments and grow. - **Entity Type**: Private (Bootstrapped) – no disclosed funding rounds; privately held. - **Headquarters**: Holmdel, New Jersey, United States - **Founded**: Approximately 2011 (based on “Fifteen years ago” from 2026) - **Founders**: Alex Groyzburg (CEO), Nataly Chayka (COO) ## Core Business - **Primary industry**: Payment processing / Merchant services (Fintech) - **Target customers**: B2B – small and medium businesses, restaurants, retail stores - **Mission statement**: “To simplify payment processing and unlock financial opportunities for every business — no matter its size, history, or location.” ## Products & Services - **Zero Cost Processing (Dual Pricing)**: Merchants can accept credit cards without paying processing fees by offering a cash discount to card-paying customers. Enabled by recent law changes and Slice’s proprietary software. - **Clover POS Systems**: Countertop, handheld, and mobile devices for dip, tap, swipe, and mobile wallet payments. Includes lifetime hardware warranty and next-day replacement. - **Slice Capital (Merchant Cash Advance)**: Fast, flexible funding based on future revenue, not credit score. Simple terms and tailored repayment. - **Loyalty & Gift Card Services**: Built-in loyalty programs and gift card systems integrated with Clover. - **EZ-QR Menu & Website Showcase**: Smart QR menus, online ordering, and branded websites optimized for mobile. - **SliceCare™ Support**: 24/7 customer service with under-20-second response time, instant issue tracking via app, and next-day hardware replacement. ## Market Standing - **Valuation/Market Cap**: Not disclosed - **Key Metric**: Over $300 billion in payments processed in 2025 (company-claimed); 20,000+ satisfied clients; 146 employees (as of mid-2026) - **Notable Investors/Partners**: No external investors disclosed; partners include Clover (device provider) and various charitable organizations (Tunnels to Towers, American Cancer Society, etc.) - **Growth Signals**: - Named to Inc. Magazine’s Fastest-Growing Companies in 2026 - Year-over-year employee growth of +35.3% (from ~108 to 146) - LinkedIn follower growth of +107.3% year-over-year - Active job postings up +200% year-over-year ## Competitive Advantages - **Zero-cost processing model**: Allows merchants to eliminate processing fees legally, a strong differentiator in the commoditized payments space. - **Proprietary software & hardware**: Slice’s Dual Pricing Program and Clover integration create a sticky ecosystem. - **Customer support speed**: Claims under-20-second response time and next-day hardware replacement. - **Revenue-based funding**: Slice Capital offers fast cash without traditional credit checks, appealing to underserved SMBs. ## Strategic Focus - Expand merchant base (currently over 20,000) by emphasizing zero-cost processing and all-in-one solutions. - Deepen product suite with digital ordering, loyalty, and capital offerings to become a full growth partner. - Scale headcount and sales force (active roles in sales, support, and technology). - Continue leveraging recent regulatory changes that favor dual-pricing models. ## Why Work Here - **Culture**: Described as “family-like” with collaboration, transparency, and integrity. Open office with standing desks. Employees are celebrated with bonuses and monetary incentives. - **Remote/Hybrid**: Some roles are remote (e.g., Technical Support Specialist); sales and installation roles are field-based. Headquarters in Holmdel, NJ with an additional office in New York City. - **Growth**: Fast-growing company (Inc. 5000 honoree) with 35%+ annual headcount increase. Opportunities for advancement in sales, support, and management. - **Employee Ratings**: 4.2/5.0 on Glassdoor (80 reviews) – Culture 4.2, Compensation 4.0, Work-Life 3.9, Career 4.1. - **Notable Perks**: Lifetime hardware warranty, next-day replacements, 24/7 support team; charitable donation per new merchant account. ## Sources 1. [Slice Official Website](https://startslice.com/) 2. [Slice About Page](https://startslice.com/about) 3. [Slice Careers Page](https://startslice.com/careers) 4. [LinkedIn Company Page](https://www.linkedin.com/company/slice-eliminate-processing-fees) 5. 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